Description Frederic Fusier 2007-02-06 05:13:13 EST

Using warm-up build I20070205-0009 and taken example given in buildnotes for bug 157584, I got an NPE while completing in catch formal parameter.

Here's the test case I used:
package bug;
public class X {
  void foo() throws TestException, TestOtherException {}
  void bar() {
    try {
    	foo();
    } catch(TestException e) {
    } catch(Test|) //complete at '|' position
  }
}
class TestException extends Exception {}
class TestOtherException extends Exception {}

Then you'll get an NPE with following stack trace:
java.lang.NullPointerException
	at org.eclipse.jdt.internal.compiler.lookup.ReferenceBinding.canBeSeenBy(ReferenceBinding.java:254)
	at org.eclipse.jdt.internal.codeassist.CompletionEngine.findExceptionFromTryStatement(CompletionEngine.java:2321)
	at org.eclipse.jdt.internal.codeassist.CompletionEngine.findExceptionFromTryStatement(CompletionEngine.java:2469)
	at org.eclipse.jdt.internal.codeassist.CompletionEngine.complete(CompletionEngine.java:936)
	at org.eclipse.jdt.internal.codeassist.CompletionEngine.complete(CompletionEngine.java:1994)
	at org.eclipse.jdt.internal.core.Openable.codeComplete(Openable.java:123)
	at org.eclipse.jdt.internal.core.CompilationUnit.codeComplete(CompilationUnit.java:320)
	at org.eclipse.jdt.internal.core.CompilationUnit.codeComplete(CompilationUnit.java:313)
	at org.eclipse.jdt.internal.ui.text.java.JavaCompletionProposalComputer.internalComputeCompletionProposals(JavaCompletionProposalComputer.java:180)
	at org.eclipse.jdt.internal.ui.text.java.JavaCompletionProposalComputer.computeCompletionProposals(JavaCompletionProposalComputer.java:148)
	at org.eclipse.jdt.internal.ui.text.java.CompletionProposalComputerDescriptor.computeCompletionProposals(CompletionProposalComputerDescriptor.java:303)
	at org.eclipse.jdt.internal.ui.text.java.CompletionProposalCategory.computeCompletionProposals(CompletionProposalCategory.java:264)
	at org.eclipse.jdt.internal.ui.text.java.ContentAssistProcessor.collectProposals(ContentAssistProcessor.java:251)
	at org.eclipse.jdt.internal.ui.text.java.ContentAssistProcessor.computeCompletionProposals(ContentAssistProcessor.java:220)